@misc{10481/79749,
year = {2022},
month = {4},
url = {https://hdl.handle.net/10481/79749},
abstract = {The Ad´elie Basin is a relatively small (~1600 km2), semi-enclosed continental shelf bathymetric depression
located adjacent to the Wilkes Subglacial Basin, a basin underlying a sector of the East Antarctic Ice Sheet that
contains ~3–4 m sea level equivalent of ice. Located within the Ad´elie Basin is a ~184 m thick laminated
sediment deposit, the Ad´elie Drift, ideal for examining regional changes in ice sheet and ocean dynamics. Here,
we examine the ratio of reactive beryllium-10 to reactive beryllium-9 ((10Be/9Be)reac) in a marine sediment core
obtained from the Ad´elie Drift to assess these changes during the Holocene epoch (11.7 ka BP to present). The
(10Be/9Be)reac record provides insight into changes in freshwater input, primary productivity, and scavenging
efficiency, while removing the influence of particle size on 10Be concentration. During the early Holocene,
(10Be/9Be)reac ratios indicate increased meltwater discharge from ca. 11.7 to 10 ka BP, as grounded ice retreated
from the Ad´elie Basin and adjacent bathymetric highs. After ~10 ka BP, beryllium isotopes are influenced by
scavenging efficiency and dilution controlled by ocean currents and accumulation rate, operating alongside
meltwater input, suggesting there are additional factors to consider when using (10Be/9Be)reac as a proxy for ice
shelf cover and glacial dynamics.},
organization = {Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)
Japan Society for the Promotion of Science},
organization = {Grants-in-Aid for Scientific Research (KAKENHI)	20H00193},
organization = {Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)
Japan Society for the Promotion of Science	20J21145	
PE17712	
P18791},
organization = {New Zealand Ministry of Business, Innovation and Employment (MBIE)	ANTA1801},
organization = {Ministry of Science and Innovation, Spain (MICINN)},
organization = {Spanish Government	CTM2017-89711-C2-1-P},
organization = {European Union through FEDER funds},
publisher = {Elsevier},
keywords = {Holocene},
keywords = {East Antarctica},
keywords = {Cosmogenic nuclides},
keywords = {Beryllium isotopes},
keywords = {Scavenging},
title = {Beryllium isotope variations recorded in the Ad´elie Basin, East Antarctica reflect Holocene changes in ice dynamics, productivity, and scavenging efficiency},
doi = {10.1016/j.qsa.2022.100054},
author = {Behrens, Bethany C. and Jiménez Espejo, Francisco J. and Escutia Dotti, Carlota},
}